Admission-valve.



C. RORABEOK. ADMISSION VALVE.

APPLICATION FILED DBO. as, 1912.

Patented July 8,1913.

UNITED STATES iaairiawr OFFICE.

CLAUDE RORABECK, 0F DAYTON, OHIO.

ADMISSION-VALVE.

, Specification of Letters Patent. Applicatlen filed December 23, 1912. Serial No. 738,227.

r peness;

To all u'lmm it may concern Be it known that I, CLAUDE Ronannox, citizen of the United States, residing at Dayton, in the county of Montgomery and State of' Ohio, have invented certain new and? useful Improvements in Admission- Valves'; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make a and usethe same, reference being had'to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention comprises an improved admission valve for constant pressure types of'gas or'oil engines.

The object of. the invention is to provide a valve of such type which is suitable for feeding a low grade of oil aswell as the higher grades and whereby efiiciency and srlplootli operation of the engine are obtaina e:

' A' distinguishing'feature of the invention is the provision of means whereby the oil is introduced into the lower portion of a hot air pocket separately from the introduction ofthe'air tosaidpock'et and at a point where it mixes with the air after the latter has become heated. The result is that a more perfect ignition of the fuel at the various loads similar reference characters indicate corresponding parts in the several views of the drawings. 7 v

The injection of the oil is controlled'by a pump 14 which feeds into the hot air cha her 1 0f the valve. ,The air is injectedi to i said chamber 1 through a sult-able valve 2 "whose seat is provided in a steel bushing 26. The air enters said chamber through a passage 3 "and lateral passage 4 in the valve cage 13 and bushing 26 and port 5 extending from the valve seat. It will be observed Patented July 8, 191;.

that the port 5 which is controlled by the valve 2 communicates directly with the upper portion of the, hot air chamber 1. The

compressed gas in the engine cylinder (not shown) enters the chamber 1 and serves to maintain said chamber in a heated condition for the reception of the air. This com- ,pressed gas enters said hot airchamber or pocket through the port 6 and passes through atomizer-s or grids Z. The valve organlsm is mounted in the head 8 of the cy inder and the ato'mizers or grids 7 are located nearer the inner surface of the head. The valve 2 is maintained on its seat by the spring 9 which is inclosed in a guide 10 and is held by a cap 11. The said valve is lifted from its seat at the proper time by the lever 12 which is. operated by a cam-from the cam shaft 16 which is suitably timed. The cam for operating this lever is a well known instruinentality and for this reason it has not been deemed necessary to illustrate the same.

The pump 14 is operated by a suitable cam 01- ecccntric 15 from the said cam shaft 16.

The said cam or eccentric 15 operates upon the pump plunger 17; Oil is introduced to the pump from the source of supply through a pipe 18 and is delivered to the valve cage 13 throu h a pipe 19, and enters a passage 20 in sai valve cage and thence to the hot air pocket 1 through a lateral port 21. It

will be observed that the lateral oil port 21 communicates with said air pocket at the lower portion thereof while the air port 5 enters said pocket at the top thereof. It, therefore, follows that the oil mixes with the air when the latter is heated. The injec tion of the oilis suitably timed with the engine.

\Vhen the valve 2 is raised, the mixture of the hot air and oil is injected from the pocket 1 through the atomizers or grids T and port 6 to the engine cylinder. The grids 7 serve to thoroughly atomize the oil and commingle it with heated air before the mixture enters the cylinder of the engine. The admission of the oil and the air into the mixing pocket or chamber 1 is so timed that said injection takes place at about the highest point of compression in the cylinder. At the various loads of the engine, the quantities of oil and air are likewise varied to suit the conditions of loadin so that a more per-' The grids T are located within a plug 22 that is tapped into a bushing 23 which lies adjacent to the inner side'of the cylinder ment or feature might not be varied within the scope of the invention for itis obvious that the construction might be modified to some extent without departing from the fundamental principles of the mvention. These involve means for H1]8Ct111g the 011 a into the lower portion of a mixing chamber which is maintained in a heated condition I from the compression of the engine cylinder,

the air being discharged into said chamber at a point remote from the point at which the oil is introduced to said chamber and the arrangement oi" an atomizer between the point of introduction of the oil and the interior of the engine cylinder. 'By such an arrangement a very desirable mixture of fuel is obtained to meet the varied requirements of the engine.

Having described my invention, 1 claim,'

' 1'. In an admission valve of the type specified, the combination with the head of an engine cylinder, of a valve housing mounted therein and provided with a mixing chamber adjacent to the inner side of the cy1inder head, and an oil passageway communieating with the inner portion of said mixing chamber, a valve seat forming the outer inclosure of said mixing chamber having a lateral air port communicating with an air passage in the valve housing, a valveflcontrolling the port in said'valve seat, and an atomiaer located between the inner end of the mixing chamber and the interior of the cylinder head, substantially as specified.

2. In a valve of the type specified, the combination with the head of an engine cylinder, of a valve housing mountedtherein'SO and provided with a mixing chamber extending through the inner end thereof, and

aniindependent oil passage communicating with the inner poi'tlon .ot said mixmg chamher, a bushing united to the inner end of '55. said valve houslng and forming a continuation of the mixing chamber, an atomizer mounted in said bushing and intercepting thepassage of the mixture from the mixing chamber to the interior of the cylinder head,

a valve seat forming the outer-inclosure of said mixing chamber, said valve seat having an air portleading to the mixing chamber and a lateral port extending into the valve housing, and a valve. controlling the port in said valve seat to admit air to said mixing chamber at a point remote from'the point at which the oil is introduced to said chamber,- substantially as specified.

3. In a valve of the type specified, the

combination with the head of an engine cylinder, of a valve housing mounted therein and having a mixing chamber and parallel independent air and oil passages leading to said mixing chamber, the oil passage leading to the inner portion of said mixing chamber, a valve seat forming the outer inclosure of said mixing chamber and with which the air passage communicates, a valve controlling the admission of air to the mixing chamber through said valve seat, means for supplying said 011 passage with 011 under, pressure, and an atomizer communicating with the inner end of mixing chamber. and lying between said mlxing chamber and the interior of the cylinder head, substandaily as specified.

In testimony whereof. I afiix my signature, in-presence of two witnesses.

CLAUDE RoRABEcx;

Witnesses: a

R-J. MOCARTY, -MATTHEW SIEBLER. 

